Review / remake test_intarray.[ch] to avoid creating module for each intarray

[Igor Sereda]

Originally reported on Google Code with ID 4 ``` Currently, a crash is possible when two intarrays with the same name are created consequently - see LongArrayTests, method testCrashFollowingFailedCreate().

The whole organization of intarray extension should be reviewed and improved. ```

Reported by `sereda` on 2010-07-21 18:08:43

[Igor Sereda]

``` intarrays remade ```

Reported by `sereda` on 2011-01-16 02:06:48 - Status changed: `Fixed` - Labels added: FixVersion-210

[Igor Sereda]

Reported by `sereda` on 2011-02-08 07:34:18 - Status changed: `Delivered`